Class I
,
Posterior crossbite
,
Mandibular retrognathia
,
Open bite
,
Narrow arches
,
Midline shift
,
Crowding

Distalization
,
Expansion
,
Elastics: vertical
Courtesy of Dr C. Chun Tsai, 2022
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 23
  • Gender: female
  • Invisalign Treatment Option: Invisalign Comprehensive

Total Treatment Time

  • 26 months

Number of aligners

  • Maxillary: 33 + 4 + 12 = 49
  • Mandibulary: 33 + 4 + 12 = 49

Aligner Wear time

  • 2-weeks

Retention

  • Maxillary: Other clear
  • Mandibular: Other clear

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Posterior crossbite corrected
  • Normal  overjet and overbite achieved
  • Significant improvement of overbite
  • Midlines coincident
  • Arches aligned and coordinated
  • Arch form improved
  • Aesthetic smile line was achieved 
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Comments

  • This young lady has a narrow arch with an anterior open bite.
  • Her skeletal Class II was improved in the treatment due to the autorotation of the mandible and correcting the anterior open bite.
  • The major mechanics in Invisalign treatment is molar intrusion and a vertical jump to simulate the automation of the mandible.
  • Arch expansion in Invisalign was excellent to the jump achieved at the end of treatment

Images

Initial and final

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upper
lower
right
front
left
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upper
lower
right
front
left

Progress

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lower
right
front
left
InitialFinal
Before picture of treatment
After picture of treatment
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Radiographs

Initial Final
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